The two main forces that move water through a plant are

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Transpiration, the evaporation of water from the leaves, creates a pull that draws water up from the roots. Root pressure, the force exerted by water within the roots, also helps push water up. These two forces working together move water through the plant. Photosynthesis and pressure flow do play a role in the movement of substances in plants, but they are not the main forces that move water. Active transport and cohesion are processes that help move water within the plant, but they are not the main forces that move water through the plant.

The Two Main Forces That Move Water Through a Plant